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LONG-TERM STOCK INCENTIVE PLAN Summary of Status of Restricted Stock (Details) (Restricted Stock Units (RSUs), USD $)
12 Months Ended
Nov. 30, 2013
Restricted Stock Units (RSUs)
 
Restricted Shares  
Unvested at beginning of period 291,587
Granted 90,054
Vested (39,810)
Forfeited (3,442)
Unvested at end of period 338,389
Weighted-Average Grant-Date Fair Value (Per Share)  
Unvested at beginning of period $ 28.24
Granted $ 32.72
Vested $ 33.06
Forfeited $ 26.69
Unvested at end of period $ 28.88
Weighted-Average Remaining Contractual Term  
Unvested at end of period 3 years 7 months 6 days